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Slaved Mode Operation
During Slaved mode operation either controller can operate the radio with
no change in System and Group settings when control is switched. Both
controllers display the current information. If a key is pressed at the idle
controller, other than PTT, E or siren and light keys as noted in followi ng
paragraphs, a low tone will sound and the display will temporarily show
DUAL on line one of the idle controller.
When control is switched in a Slaved mode system, all of the radio settings
and states will remain in effect that have been selected on the active
controller.
Independent Mode Operation
During Independent operation, the radio system operates as if there are two
radio units each controlled by a separate control unit. Each control unit
maintains its own System and Group settings which are restored when
control is switched.
The idle controller will display DUAL on line one to indicate that it is idle.
If a key is pressed at the idle controller, other than PTT, E or siren and
light keys as noted in following paragraphs, a low tone will sound at the idle
controller.
When control is switched in Independent mode, the idle controller will
restore its own System and Group settings instead of using the settings of
the previously active controller. Any pending operations at the active
controller, other than E or siren and light operations, will be terminated.
Emergency Operation
Either control unit (active or idle controller) can declare an emergency,
provided radio has been pre-programmed to enable emergency declaration.
If the idle controller declares an emergency, control is switched to the idle
controller and any current transmission from the previously active controller
is terminated.
Siren And Light Control
Siren and light control is only available from the control unit that is pre-
programmed for these functions. Typically, the control unit at the driver's
location would be programmed. The control unit that has these functio ns
programmed can activate them regardless of whether it is an active or an
idle controller.